Terminal and communication method

Abstract

To behave properly when L1-SRS-RSRP measurement resources and DL signal reception resources collide, even when UE does not support the new UE capability for FDM DL reception and L1-SRS-RSRP measurements.SOLUTION: A terminal includes a receiving unit that receives a downlink signal and a control unit that performs the measurement for the crosslink interference and sets resources for reporting the measurement results, and when a conflict occurs between the resources for receiving the downlink signal and the resources for measuring the crosslink interference, the terminal performs one of receiving the downlink signal and measuring the crosslink interference according to a preset rule.SELECTED DRAWING: Figure 11

Description

[Technical Field]

[0001] The present disclosure relates to a terminal and a communication method. [Background technology]

[0002] The 3rd Generation Partnership Project (3GPP (registered trademark)) has developed specifications for the 5th generation mobile communication system (5G, also known as New Radio (NR) or Next Generation 10 (NNG)), and is also developing specifications for the next generation mobile communication system known as Beyond 5G, 5G Evolution, or 6G.

[0003] Release 18 discusses an extension of the duplexing scheme that allows simultaneous use of the downlink (DL) and uplink (UL) by utilizing multiple subbands that make up the time division duplexing (TDD) band. This extended duplexing scheme is called subband non-overlapping full duplex (SBFD).

[0004] The introduction of SBFD and dynamic / flexible TDD has made it possible to simultaneously transmit DL / UL from a base station (hereinafter also referred to as gNodeB (gNB)) / terminal (hereinafter also referred to as user equipment (UE)).

[0005] On the other hand, the expansion of duplexing methods has led to the occurrence of cross-link interference (CLI), which also occurs in dynamic TDD where the timing of DL and UL transmissions differs for each cell.

[0006] In these communication methods, to counter CLI, a terminal measures reception quality in the physical layer and reports L1 (Layer 1)-based measurement results to a base station. Measurement of reception quality in the physical layer may be referred to as L1 measurement. The reception quality in the physical layer may include L1-SRS-RSRP (Reference Signal Received Power) and L1-CLI-RSSI (Received Signal Strength Indicator). [Prior art documents] [Non-patent literature]

[0007] [Non-Patent Document 1] “New WID: Evolution of NR duplex operation: Sub-band full duplex (SBFD)”, RP-234035, 3GPP TSG RAN Meeting #102, 3GPP, December 11-15, 2023 [Non-patent document 2] TS38.212 V18.3.0 (2024-06) Section 6.2.7 [Non-patent document 3] TS38.331 V18.3.0 (2024-07) Section 6.3 Summary of the Invention

[0008] At the RAN#120bis meeting, it was agreed to introduce a new UE capability for FDM (Frequency Division Multiplexing) DL reception and L1-SRS-RSRP measurements.

[0009] However, the behavior of UEs that do not support this new UE capability is unclear, and there is room for further investigation, particularly in the case where L1-SRS-RSRP measurement resources and DL signal reception resources collide.

[0010] One aspect of the present disclosure provides a terminal and a communication method that operate appropriately when an L1-SRS-RSRP measurement resource and a DL signal reception resource collide.

[0011] A terminal according to one aspect of the present disclosure includes a receiving unit that receives the downlink signal and a control unit that performs measurements for the crosslink interference and sets resources for reporting the measurement results, and when a conflict occurs between the resources for receiving the downlink signal and the resources for measuring the crosslink interference, the terminal performs one of receiving the downlink signal and measuring the crosslink interference according to a preset rule. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a diagram illustrating an overall schematic configuration of a wireless communication system. [Figure 2] FIG. 1 illustrates frequency ranges used in wireless communication systems. [Figure 3] 1A to 1C are diagrams illustrating examples of the configuration of radio frames, subframes, slots, and symbols used in a radio communication system. [Figure 4A] FIG. 1 is a diagram showing an example of TDD configuration specified up to Release 16. [Figure 4B] FIG. 1 is a diagram illustrating an example of the configuration of SBFD. [Figure 5] FIG. 10 is a diagram illustrating an example of SBFD operation. [Figure 6A] FIG. 1 illustrates an example of an existing TDD configuration. [Figure 6B] A diagram showing an example of TDD including SBFD configuration. [Figure 7A] FIG. 1 illustrates pure time units and SBFD time units. [Figure 7B] FIG. 1 illustrates pure time units and SBFD time units. [Figure 7C] FIG. 1 illustrates pure time units and SBFD time units. [Figure 7D]FIG. 1 illustrates pure time units and SBFD time units. [Figure 7E] FIG. 1 illustrates pure time units and SBFD time units. [Figure 8] FIG. 1 is a diagram illustrating an overview of the CSI report framework (Report setting). [Figure 9] FIG. 1 is a diagram illustrating an overview of resource setting. [Figure 10] FIG. 2 is a block diagram showing an example of the configuration of a base station. [Figure 11] FIG. 2 is a block diagram showing an example of the configuration of a terminal. [Figure 12] FIG. 2 is a diagram illustrating an example of the hardware configuration of a base station and a terminal. [Figure 13] FIG. 1 is a diagram illustrating an example of a configuration of a vehicle.

[0013] Hereinafter, embodiments will be described with reference to the drawings. Note that the same or similar reference numerals are used to designate the same functions or configurations, and descriptions thereof will be omitted as appropriate.

[0014] (1) Wireless communication system configuration 1 is a wireless communication system conforming to a scheme called 5G. Alternatively, the wireless communication system 10 may be a wireless communication system conforming to a scheme called Beyond 5G, 5G Evolution, or 6G.

[0015] The wireless communication system 10 can support Massive Multiple-Input Multiple-Output (Massive MIMO), which generates more directional beams by controlling wireless signals transmitted from multiple antenna elements, Carrier Aggregation (CA), which uses multiple component carriers (CCs) as a bundle, and Dual Connectivity (DC), which communicates simultaneously with two base stations.

[0016] As shown in FIG. 1, a wireless communication system 10 includes a base station 100 (hereinafter also referred to as a gNodeB (gNB) 100) constituting a Next Generation-Radio Access Network (NG-RAN) 20, and a terminal 200 (hereinafter also referred to as a user equipment (UE) 200) that performs wireless communication with the gNB 100. The NG-RAN 20 is connected to a core network (CN) (not shown). The CN is composed of multiple network functions (NFs). The NFs are, for example, an access and mobility management function (AMF) and a network data analytics function (NWDAF). The AMF performs, for example, registration of the UE 200. The NWDAF performs, for example, optimization of the CN. Note that the specific configuration of the wireless communication system 10, for example, the number of gNBs 100 and UEs 200, is not limited to the example shown in FIG. 1. The NG-RAN 20 and the CN may be simply referred to as a "network."

[0017] The gNB100 may be a base station in a Centralized-Radio Access Network (C-RAN) configuration having a distributed unit (DU) having a function for connecting to the UE200 and a central unit (CU) having a function for connecting to the network. In this case, the gNB100 may be read as a DU, a CU, or a DU and a CU. When read as a DU, the gNB100 may be called a gNB-DU. When read as a CU, the gNB100 may be called a gNB-CU. When read as a DU and a CU, the DU portion may be called a gNB-DU and the CU portion may be called a gNB-CU.

[0018] Furthermore, the wireless communication system 10 may support a plurality of frequency ranges (FRs). That is, as shown in FIG. 2, the wireless communication system 10 may support the following FRs: FR1: 410MHz~7.125GHz FR2-1: 24.25GHz~52.6GHz ·FR2-2: More than 52.6GHz~71GHz

[0019] In FR1, a subcarrier spacing (SCS) of 15, 30, or 60 kHz and a bandwidth (BW) of 5 to 100 MHz may be used, and in FR2-1, an SCS of 60 or 120 kHz (or 240 kHz) and a BW of 50 to 400 MHz may be used.

[0020] Note that the SCS may be interpreted as a numerology, which is defined in 3GPP TS 38.300 and corresponds to one subcarrier spacing in the frequency domain.

[0021] In FR2-2, to avoid an increase in phase noise, Cyclic Prefix-Orthogonal Frequency Division Multiplexing (CP-OFDM) or Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) with a larger SCS may be applied.

[0022] Fig. 3 is a diagram showing an example of the configuration of a radio frame (system frame), subframe, and slot used in the radio communication system 10. As shown in Fig. 3, one slot is made up of 14 symbols, and the larger (wider) the SCS, the shorter the symbol period (and slot period). However, the SCS is not limited to the interval (frequency) shown in Fig. 3. For example, 480 kHz, 960 kHz, etc. may be used as the SCS.

[0023] Furthermore, the number of symbols constituting one slot does not necessarily have to be 14 (for example, it may be 28 or 56 symbols, etc.) Furthermore, the number of slots per subframe may differ depending on the SCS.

[0024] The time direction (t) shown in Fig. 3 may be called a time domain, a symbol period, a symbol time, etc. The frequency direction may be called a frequency domain, a resource block, a subcarrier, a bandwidth part (BWP), etc.

[0025] The wireless communication system 10 may support coverage enhancement (CE) that expands the coverage of a cell (or a physical channel) formed by the gNB 100. In coverage enhancement, a mechanism for increasing the success rate of reception of various physical channels, such as repeated transmission (repetition) of a physical random access channel (PRACH), may be provided.

[0026] For example, UE200 receives information related to the random access procedure from gNB100 as a downlink (DL) signal (e.g., SIB1 (System Information Block Type 1) etc.).

[0027] Furthermore, for example, the UE 200 transmits a PRACH as an UL signal to the gNB 100 using a RACH occasion (RO), which is a resource for transmitting a random access preamble. For example, the UE 200 repeatedly transmits the PRACH as an UL signal to the gNB 100.

[0028] The UL signal may include, for example, a UL data signal and control information. For example, the UL signal may include information related to the processing capability of the UE 200 (e.g., UE capability). The UL signal may also include a reference signal.

[0029] Channels used for transmitting UL signals include, for example, data channels and control channels. For example, the data channels may include a Physical Uplink Shared Channel (PUSCH), and the control channels may include a Physical Uplink Control Channel (PUCCH). For example, the UE 200 transmits control information using the PUCCH and transmits UL data signals using the PUSCH. Note that the PUSCH is an example of an uplink shared channel, and the PUCCH is an example of an uplink control channel. The shared channels may also be called data channels.

[0030] The reference signal included in the UL signal may include at least one of a DMRS (Demodulation Reference Signal), a PTRS (Phase Tracking Reference Signal), a CSI-RS (Channel State Information - Reference Signal), an SRS (Sounding Reference Signal), and a PRS (Positioning Reference Signal) for positioning information. For example, reference signals such as the DMRS and PTRS are used to demodulate the UL data signal and are transmitted using the PUSCH.

[0031] Meanwhile, in response to the operation of UE200, gNB100 transmits information related to the RACH procedure to UE200 as a DL signal (e.g., SIB1, etc.).

[0032] Furthermore, for example, the gNB 100 receives, as an UL signal, a PRACH from the UE 200. For example, the gNB 100 repeatedly receives, as an UL signal, a PRACH from the UE 200.

[0033] Channels used for transmitting DL signals include, for example, data channels and control channels. For example, the data channel may include a physical downlink shared channel (PDSCH), and the control channel may include a physical downlink control channel (PDCCH). For example, the gNB 100 transmits control information to the UE 200 using the PDCCH, and transmits DL data signals using the PDSCH. Note that the PDSCH is an example of a downlink shared channel, and the PDCCH is an example of a downlink control channel. Note that the PDCCH may be interpreted as downlink control information (DCI), control information, etc. transmitted in the PDCCH.

[0034] The reference signal included in the DL signal may include, for example, at least one of DMRS, PTRS, CSI-RS, SRSRS, and PRS for location information. For example, the reference signal such as DMRS or PTRS is used for demodulating the DL data signal and is transmitted using the PDSCH.

[0035] Here, the UE 200 performs measurements related to reception quality in the physical layer. The measurements related to reception quality in the physical layer may be referred to as L1 measurements. The reception quality in the physical layer may include L1-SRS-RSRP (Reference Signal Received Power) and L1-CLI-RSSI (Received Signal Strength Indicator). Hereinafter, the measurement of L1-SRS-RSRP by the UE 200 is referred to as "L1-SRS-RSRP measurement."

[0036] Furthermore, the UE 200 reports measurement results relating to reception quality in the physical layer to the gNB 100. This reporting may be referred to as L1 reporting.

[0037] The L1-SRS-RSRP may be a linear average of the power ([W]) of the resource elements carrying the SRS. The measurement time resource of the linear average may be configured by a higher layer (RRC message).

[0038] The L1-CLI-RSSI may be a linear average of the observed total received power ([W]). The measurement time resource for the linear average may be configured by higher layers (RRC messages).

[0039] The definitions of L1-SRS-RSRP and L1-CLI-RSSI may be newly introduced. The definitions of L1-SRS-RSRP and L1-CLI-RSSI may be the same as the existing definitions of SRS-RSRP / CLI-RSSI, or may be updated definitions of the existing SRS-RSRP / CLI-RSSI. The existing SRS-RSRP / CLI-RSSI may be defined in TR38.215 §5.1.19 / §5.1.20.

[0040] (SBFD operation) Considering the time ratio of transmission and reception (e.g., DL:UL = 4:1) using Time Division Duplex (TDD) up to Release 16, there may be cases where the number of transmission opportunities for UL signals / channels is fewer than the number of reception opportunities for DL ​​signals / channels. In such cases, UE 200 cannot transmit UL signals / channels frequently, which raises concerns about transmission delays of important UL signals / channels. Furthermore, since there are fewer UL transmission opportunities compared to DL reception opportunities, there is also concern about signal / channel congestion during UL transmission opportunities. Furthermore, with TDD, the time resources available for transmitting UL signals / channels are limited, which limits the application of UL coverage extension techniques, such as repetition transmission.

[0041] In future wireless communication systems (for example, Release 18 and later), the introduction of a time-frequency division duplexing method that combines TDD and frequency division duplexing (FDD) for both UL and DL is being considered.

[0042] Examples of the time-frequency division duplexing method include XDD (Cross Division Duplex) and Subband-non-overlapping Full Duplex (SBFD). XDD or SBFD may refer to a duplexing method that frequency-division multiplexes DL and UL within one component carrier (CC) in the TDD band (allowing DL and UL to be used simultaneously).

[0043] Fig. 4A is a diagram showing an example of TDD configuration defined up to Release 16. In the example shown in Fig. 4A, TDD slots or symbols are configured for a UE in a bandwidth such as one component carrier (CC) (which may also be called a cell or serving cell) or bandwidth portion (BWP).

[0044] In the example shown in Figure 4A, the time ratio of DL slots to UL slots is 4:1. This conventional TDD slot or symbol configuration does not ensure sufficient UL time resources, which can result in UL transmission delays and reduced coverage performance.

[0045] Fig. 4B is a diagram showing an example of the configuration of SBFD. In the example shown in Fig. 4B, within one component carrier (CC), resources used for DL ​​reception and resources used for UL transmission overlap in time. With such a resource configuration, more UL resources can be secured, thereby improving resource utilization efficiency.

[0046] For example, as shown in the example of Figure 4B, both ends of the frequency domain may be set as DL resources, and these DL resources may sandwich UL resources. This may prevent or mitigate cross link interference (CLI) with neighboring carriers. Also, a guard region may be set at the boundary between the DL resources and the UL resources.

[0047] Considering the complexity of handling self-interference, it may be considered that only the base station 100 uses the DL resource and the UL resource simultaneously. That is, in radio resources where the DL and UL overlap in time, one UE 200 may use the DL resource and another UE 200 may use the UL resource.

[0048] Fig. 5 is a diagram showing an example of SBFD operation. In the example shown in Fig. 5, part of the DL resources of the TDD band is set as the UL resources, and the DL and UL are configured to partially overlap in the time domain.

[0049] In the example shown in FIG. 5, during the DL-only period, each of the multiple UEs 200 (UE#1 and UE#2 in FIG. 5) receives the DL channel / signal.

[0050] Furthermore, during a period in which DL and UL overlap in time, one UE 200 (UE#1 in the example of FIG. 5) receives a DL channel / signal, and another UE 200 (UE#2 in the example of FIG. 5) transmits a UL channel / signal. During this period, base station 100 performs simultaneous transmission and reception of DL and UL.

[0051] Furthermore, during the UL-only period, each of the multiple UEs 200 (UE#1 and UE#2 in FIG. 5) transmits a UL channel / signal.

[0052] In existing NR (e.g., those specified up to Release 15 / 16 / 17), the DL frequency resource and the UL frequency resource of a UE carrier are configured as DL BWP and UL BWP, respectively. To switch DL / UL frequency resources to other DL / UL frequency resources, multiple BWP configurations and a BWP adaptation mechanism are required.

[0053] Figure 6A is a diagram showing an example of an existing TDD configuration. In Figure 6A, slots / symbols marked with "D" are DL slots / symbols, slots / symbols marked with "U" are UL slots / symbols, and slots / symbols marked with "F" are flexible (hereinafter also referred to as FL) slots / symbols. Note that similar notations may be used in the following figures.

[0054] In the existing NR, as shown in FIG. 6A, time resources (time units such as symbols and slots) in the TDD carrier for UE 200 are configured as at least one of DL, UL, and flexible (FL) in the TDD configuration.

[0055] Figure 6B is a diagram showing an example of an existing TDD configuration. In Figure 6B, slots / symbols or subbands marked with "D" are DL slots / symbols or DL ​​subbands, and slots / symbols or subbands marked with "U" are UL slots / symbols or UL subbands. Note that similar notations may be used in the following figures.

[0056] As shown in FIG. 6B , the SBFD symbol may be a symbol that is signaled or configured as UL (or DL) or for UL transmission (or DL ​​reception) on some frequency resources (subbands), and signaled or configured as DL (or UL) or for DL ​​reception (or UL transmission) on other frequency resources (subbands). Alternatively, the SBFD symbol may be a symbol that is signaled or configured as UL (or DL) or for UL transmission (or DL ​​reception) on a portion of frequency resources. Alternatively, the SBFD symbol may be a symbol that is signaled or configured as DL (or UL) or for DL ​​reception (or UL transmission) on a portion of frequency resources.

[0057] Here, the time unit may be at the symbol level, slot / subslot level, or a group of symbols / slots / subslots, i.e., the SBFD time unit may be an SBFD symbol, a slot / subslot containing or overlapping an SBFD symbol, or a group of symbols / slots / subslots containing or overlapping an SBFD symbol.

[0058] A pure time unit may be a non-SBFD symbol (i.e., a symbol that is not an SBFD symbol, also referred to as a non-SBFD symbol), a slot / subslot that does not contain or overlap an SBFD symbol, or a group of symbols / slots / subslots that do not contain or overlap an SBFD symbol, and may also be referred to as a non-SBFD time unit. For example, a pure time unit may be referred to as a time unit consisting only of DL on frequency resources as shown in Figure 7A, or as a time unit consisting only of UL on frequency resources as shown in Figure 7B.

[0059] Furthermore, for an SBFD time unit, DL resources and UL resources may have various allocation patterns in the frequency domain. For example, an SBFD time unit of frequency domain pattern #1 may have an allocation pattern as shown in FIG. 7C. An SBFD time unit of frequency domain pattern #2 may have an allocation pattern as shown in FIG. 7D. An SBFD time unit of frequency domain pattern #3 may have an allocation pattern as shown in FIG. 7E. These allocation patterns are merely exemplary, and other allocation patterns may also be used. The frequency domain pattern of an SBFD time unit may refer to a resource repetition pattern in the frequency domain for the SBFD time unit.

[0060] As described above, SBFD may be applied to each slot / symbol. Note that each slot / symbol may be set to DL, UL, or Flexible (FL) that can be used as DL or UL, and then SBFD may be applied.

[0061] SBFD is a type of (full-duplex) duplexing scheme based on time division duplexing (TDD), enabling simultaneous use of multiple sub-bands that make up the TDD band. SBFD can be described as a duplexing scheme in which multiple sub-bands are specified within the TDD band, a duplexing scheme in which UL and DL are allocated non-overlapping in the frequency direction within the TDD time unit, or full-duplex duplexing of sub-bands.

[0062] A symbol to which SBFD is applied is also called an SBFD symbol. "SBFD is applied" may be interpreted as SBFD being applied to at least a part of scheduling. In other words, a "symbol to which SBFD is applied" may be interpreted as a symbol to which SBFD is applied (SBFD symbol) in scheduling to which SBFD is applied. Also, a "time unit to which non-SBFD is applied" may be interpreted as a symbol to which SBFD is not applied (non-SBFD symbol) in scheduling to which SBFD is applied.

[0063] The following describes the terms related to SBFD. · SBFD DL symbol: A symbol indicated for DL by tdd-UL-DL-ConfigurationCommon and / or tdd-UL-DL-ConfigurationDedicated, and is a symbol in which an SBFD sub-band is configured · SBFD FL symbol: A symbol indicated for FL by tdd-UL-DL-ConfigurationCommon and / or tdd-UL-DL-ConfigurationDedicated, and is a symbol in which an SBFD sub-band is configured · SBFD SSB symbol: A symbol configured for SSB reception, and is a symbol in which an SBFD sub-band is configured · Non-SBFD symbol: A symbol in which an SBFD sub-band is not configured, and / or a symbol in which SBFD operation is not performed on the gNB side

[0064] <Enhancement of CLI Handling> In the RAN#104 meeting, the enhancement of CLI handling was updated as follows. · Specific enhancement functions for CLI handling [RAN1, RAN2, RAN3, RAN4] · Muting of UL resources of PUSCH including [RAN1, RAN2, RAN4] · Assuming comb-2 for both DFT-S-OFDM and CP-OFDM of each allocated PRB and assuming a maximum of 2 symbols in the time domain, indication / decision of muting of UL resources of PUSCH based on a quasi-static setting · PUSCH resource mapping, that is, rate matching around muted REs · Determination of UCI resources in symbols having muted REs · L1-based inter-UE CLI measurement and reporting based on the existing CSI (Channel State Information) framework including [RAN1, RAN2, RAN4] - Setting / Determining "type D" QCL assumptions for CLI measurement resources At least occasional reporting New reporting quantities, e.g., L1-SRS-RSRP, L1-CLI-RSSI and / or measurement resource index UCI bit generation Priority rules for multiple CSI (Channel State Information) reporting CLI measurement accuracy requirements *Note: There will be no dedicated optimizations for dynamic / flexible TDD.

[0065] (RRC information elements) The configuration of RRC information elements such as CSI report config (CSI-ReportConfig), CSI resource config (CSI-ResourceConfig), R16 CLI measurement resource config (MeasObjectCLI-r16), AP CSI report triggering (CSI-AperiodicTriggerStateList), and SP CSI report triggering (CSI-SemiPersistentOnPUSCH-TriggerStateList) is disclosed in Non-Patent Document 3.

[0066] The CSI report config is a configuration related to reporting CSI feedback. Multiple CSI report configs can be set. The CSI-ResourceConfigId in the CSI report config is an identifier indicating the resource used when performing measurements.

[0067] The CSI resource config is a configuration for setting CSI resources, called by the CSI-ResourceconfigId in the CSI report config. The csi-RS-ResourceSetList in the CSI resource config is a list in which multiple resources such as nzp-CSI-RS-SSB can be set as a CSI-RS (Reference Signal) resource set.

[0068] R16 CLI measurement resource config is a configuration related to L3 (Layer 3) reporting by measurement report. SRS resource, RSSI resource, etc. are set by CLI resource config called in measurement object.

[0069] The AP CSI report triggering is a configuration for calling the CSI-ReportConfigId in order to trigger a specific state selected from the trigger states previously configured by the RRC when a CSI report is triggered aperiodically by the DCI.

[0070] The SP CSI report triggering is a configuration for calling the CSI-ReportConfigId in order to trigger a specific state selected from among the trigger states configured in advance by the RRC when semi-statically triggering a CSI report.

[0071] (CSI reporting framework in NR) As shown in Fig. 8, the UE configures a CSI report using information including the Resource setting for Channel Measurement and reports it to the gNB. The Report setting in Fig. 8 is an example of the CSI report configuration. The Resource setting is information indicating the CSI-RS resource used for CSI measurement.

[0072] As shown in Fig. 9, each resource setting #i (i is an integer equal to or greater than 0) includes a CSI-RS resource set #j (j is an integer equal to or greater than 0). The resource setting in Fig. 9 is an image of a CSI resource config.

[0073] <Agreement> At the RAN#118 meeting, the following agreements were reached:

[0074] (Agreement details 1) Regarding UE-to-UE CLI measurement and reporting, CLI measurement is performed within the active DL BWP and the following is supported: Method #1: The UE measures the RSSI in the DL subband. Method #2: The UE measures the RSRP of the aggressor UE in the UL subband. Method #3: The UE measures RSSI in the UL subband. However, Method #3 is undefined.

[0075] (Agreement details 2) For frequency resource allocation, the following is supported: Measurement resource type 1: One CLI-RSSI measurement resource is configured in the DL subband. Measurement resource type 2: One CLI-RSSI measurement resource is configured across two DL subbands.

[0076] The number of configurable resources and the UE behavior for measurements have not yet been determined.

[0077] (Agreement details 3) For UE-to-UE CLI measurement and reporting, two additional report quantities {'cli-RSSI', 'cli-SRS-RSRP'} are supported in the higher layer parameter reportQuantity.

[0078] The number of CLI resources reported by reportConfig and the reporting criteria have yet to be determined.

[0079] (Agreement details 4) Regarding UE-to-UE CLI measurement and reporting, the following is supported: Wideband CLI-RSRP reporting Wideband CLI-RSSI reporting Sub-band CLI-RSSI reporting has not yet been determined.

[0080] (Agreement details 5) Priority value of CSI report carrying UE-to-UE CLI report

number

[0081] In addition,

number

[0082] At the RAN1#118bis / RAN1#119 meeting, the following agreements were reached:

[0083] (Agreement details 6) CSI-ResourceConfig is extended to include two CLI measurement resource set lists for SRS-RSRP and CLI-RSSI measurements based on the Rel-16 SRS-ResourceConfigCLI and rssi-ResourceConfigCLI defined in MeasObjectCLI for L3-based SRS-RSRP and CLI-RSSI measurements. The resourceType of the two new CLI measurement resource set lists may be set to periodic, semi-persistent, or aperiodic. The two new CLI measurement resource set lists set to periodic, semi-persistent, or aperiodic may be referred to as "P / SP / AP L1-CLI-RSSI measurement resource" and "P / SP / AP L1-SRS-RSRP measurement resource." Here, "P" stands for periodic, "SP" stands for semi-persistent, and "AP" stands for aperiodic. In the current specification, the number of periodic / semi-persistent CLI measurement resource set lists in a CSI-ResourceConfig is limited to 1. Note that there is no need to define new usages for the SRS resource set.

[0084] (Agreement details 7) A new information element (IE) called SRS-RSRP-MeasurementResourceSet is defined. SRS-RSRP-MeasurementResourceSet contains a set of SRS-RSRP measurement resources for L1 SRS-RSRP measurements. An SRS-RSRP measurement resource may be referred to as an SRS-RSRP-MeasurementResource. For example, SRS-RSRP-MeasurementResourceSet contains an SRS-RSRP-MeasurementResource. Note that there may be a slot offset between the slot containing the DCI that triggers the aperiodic SRS-RSRP resource set and the slot where the SRS-RSRP resource set is measured. This setting has already been agreed upon in RAN1#118bis. · SRS-RSRP-MeasurementResource is defined with the following parameters: Legacy SRS resource IE

[0085] (Agreement details 8) A new IE called CLI-RSSI-MeasurementResourceSet is defined. CLI-RSSI-MeasurementResourceSet contains a set of CLI-RSSI measurement resources for L1 CLI-RSSI measurements. A CLI-RSSI measurement resource may be referred to as a CLI-RSSI-MeasurementResource. For example, a CLI-RSSI-MeasurementResourceSet contains a CLI-RSSI-MeasurementResource. Note that there may be a slot offset between the slot containing the DCI that triggers the aperiodic CLI-RSSI resource set and the slot in which the CLI-RSSI resource set is measured. This setting has already been agreed upon in RAN1#118bis. The CLI-RSSI-MeasurementResource is defined with the following parameters: · ID of the CLI-RSSI measurement resource · Starting PRB (Physical Resource Block) index · Number of PRBs · Starting symbol of the CLI-RSSI resource within a slot · Number of CLI-RSSI resources within a slot · Period and slot offset of the CLI-RSSI resource

[0086] At the RAN1#120bis meeting, the following agreements were made.

[0087] (Agreement content 9) Regarding the question from the RAN4 LS of R1-2501698, RAN1 reached the following agreement in response. · In response to the request from RAN4 to clarify whether the NW (network) setting of timeRestrictionForChannelMeasurement or a similar setting is applied to L1-SRS-RSRP and / or L1-CLI-RSSI measurements, RAN1 replied to RAN4 that the NW setting of timeRestrictionForChannelMeasurement is applied to L1-SRS-RSRP and L1-CLI-RSSI measurements. · In response to the question from RAN4 regarding whether to define an optional UE capbility for FDM'd DL reception and SRS measurement, RAN1 replied that a new optional UE capbility is defined for FDM'd DL reception and SRS measurement.

[0088] (Availability of UE scheduling during CLI measurement) Clause 9.7.4 of TS 38.133 describes the availability of scheduling for UEs during CLI measurements. Clause 9.7.4 of TS 38.133 explains the limitations on scheduling availability when a UE is performing CLI measurements, which are SRS-RSRP and CLI-RSSI.

[0089] Section 9.7.4.1 of TS 38.133 explains that, regarding the scheduling availability of a UE performing measurements in FR1, due to CLI measurements, at least one of the following scheduling restrictions applies: The UE is not expected to transmit PUCCH / PUSCH / SRS on the OFDM symbol on which the UE performs CLI measurements and on one data symbol prior to the OFDM symbol used for CLI measurements for 15 kHz and 30 kHz subcarrier spacing. For UEs that do not support cli-SRS-RSRP-FDM_DL, the UE is not expected to receive PDCCH / PDSCH / CSI-RS for tracking / CSI-RS for CQI on the OFDM symbol on which the UE performs SRS-RSRP measurements and on one data symbol before the OFDM symbol used for SRS-RSRP measurements for 15 kHz and 30 kHz subcarrier spacing. Note that cli-SRS-RSRP-FDM_DL is a capability for FDM-encoded L3-SRS-RSRP measurements and DL signal reception. For UEs that do not support cli-RSSI-FDM-DL, the UE is not expected to receive PDCCH / PDSCH / CSI-RS for tracking / CSI-RS for CQI on the OFDM symbol on which the UE performs CLI-RSSI measurements and on one data symbol before the OFDM symbol used for CLI-RSSI measurements for 15 kHz and 30 kHz subcarrier spacing. The UE is not expected to transmit PUCCH / PUSCH / SRS on the OFDM symbol on which the UE performs CLI measurements and on the two data symbols preceding the OFDM symbol used for CLI measurements with 60 kHz subcarrier spacing. For UEs that do not support cli-SRS-RSRP-FDM_DL, the UE is not expected to receive PDCCH / PDSCH / CSI-RS for tracking / CSI-RS for CQI on the OFDM symbol on which the UE performs SRS-RSRP measurements and on the two data symbols before the OFDM symbol used for SRS-RSRP measurements with 60 kHz subcarrier spacing. For UEs that do not support cli-RSSI-FDM-DL, the UE is not expected to receive PDCCH / PDSCH / CSI-RS for tracking / CSI-RS for CQI on the OFDM symbol on which the UE performs CLI-RSSI measurement and on the two data symbols before the OFDM symbol used for CLI-RSSI measurement with 60 kHz subcarrier spacing. Note that if TDD intra-band carrier aggregation is configured, the scheduling restriction for the serving cell on which CLI measurements are performed applies to all serving cells within the same band on symbols that fully or partially overlap with the restricted symbols.

[0090] <Analysis> As mentioned above, the RAN#120bis meeting agreed to introduce new UE capabilities for FDM DL reception and L1-SRS-RSRP measurements.

[0091] Note that FDM-ed DL reception and SRS measurement may be referred to as "FDM-ed DL reception and SRS measurement." For example, if the SRS measurement is an L1-SRS-RSRP measurement, FDM-ed DL reception and L1-SRS-RSRP measurement may be referred to as "FDMed DL reception and L1-SRS-RSRP measurement."

[0092] [assignment] The behavior of UEs that do not support the new UE capability for FDM DL reception and L1-SRS-RSRP measurements is unclear.

[0093] One possibility is to defer to L3-SRS-RSRP measurements, i.e. UEs that do not support the new UE capabilities above will always prioritize L1-SRS-RSRP measurements.

[0094] However, this idea is based on the principle of scheduling restrictions for L3 measurements, and the solution to the above problem for L1-SRS-RSRP measurements may be different from that for L3-SRS-RSRP measurements. For example, it is necessary to consider the collision between L1-SRS-RSRP measurements in the UL subband and DL reception (in the DL subband) in a given symbol.

[0095] In view of the above, this paper proposes UE behavior that takes into account the case where the UE does not support new UE capabilities for FDM DL reception and L1-SRS-RSRP measurement.

[0096] <Proposal Summary> For UEs that do not support the new UE capability for FDM DL reception and L1-SRS-RSRP measurement, the following options are proposed to deal with the collision between the L1-SRS-RSRP measurement resource and the DL signal within the same symbol: Option 1: The UE follows the L3-SRS-RSRP principle, i.e., the UE performs scheduling restrictions based on L1-SRS-RSRP measurements. · Option 2: The UE always prioritizes other DL signals (DL reception). Option 3: The UE handles collisions on a case-by-case basis. Case 3A: Collision between aperiodic L1-SRS-RSRP measurements and dynamic DL channels / signals Option 3A-1: The UE does not assume collisions. Option 3A-2: The UE prioritizes the one scheduled / triggered by the later detected DCI among multiple DCIs. Case 3B: Collision between aperiodic L1-SRS-RSRP measurement resources and DL channels / signals configured by higher layers ··Option 3B-1: The UE prioritizes aperiodic L1-SRS-RSRP measurements. Case 3C: Collision between periodic / quasi-static L1-SRS-RSRP measurement resources and dynamic channels / signals ··Option 3C-1: The UE prioritizes dynamic channels / signals. Case 3D: Collision between periodic / quasi-static L1-SRS-RSRP measurement resources and higher layer configured DL channels / signals (in DL sub-bands) Option 3D-1: The UE does not assume collisions. ··Option 3D-2: The UE prioritizes L1-SRS-RSRP measurements. ··Option 3D-3: The UE prioritizes DL channels / signals.

[0097] The items described in the following proposals may be combined as appropriate as long as no contradictions arise.

[0098] In this application, the notation " / " may mean "and / or" unless otherwise specified.

[0099] <Proposal> (Option 1) A UE (hereinafter simply referred to as "UE") that does not support the new UE capability for FDM DL reception and L1-SRS-RSRP measurement follows the L3-SRS-RSRP principle when DL signals collide with L1-SRS-RSRP measurement resources within the same symbol, i.e., the UE imposes scheduling restrictions based on L1-SRS-RSRP measurements.

[0100] The UE does not receive (or does not expect to receive) the PDCCH / PDSCH / CSI-RS for tracking / CSI-RS for CQI in the symbols where the L1-SRS-RSRP measurement is performed.

[0101] (Variation of Option 1) The UE does not receive (or assumes not to receive) PDCCH / PDSCH / CSI-RS (for tracking) / CSI-RS (for CQI) X symbols before the symbols used for L1-SRS-RSRP measurement and / or Y symbols after the symbols used for L1-SRS-RSRP measurement.

[0102] The value of X / Y may be predefined by the specification or may depend on the SCS(BWP) of the L1-SRS-RSRP measurement.

[0103] (Option 2) The UE always prioritizes other DL signals (DL reception).

[0104] The UE does not perform L1-SRS-RSRP measurements in symbols where PDCCH / PDSCH / CSI-RS (for tracking) / CSI-RS (for CQI) are present (in the DL subband).

[0105] (Option 3) The UE handles collisions on a case-by-case basis.

[0106] Case 3A: Collision between aperiodic L1-SRS-RSRP measurements and dynamic DL channels / signals (Option 3A-1) The UE does not expect to receive (in the DL subband) dynamic PDSCH / aperiodic CSI-RS for tracking / aperiodic CSI-RS for CQI (or perform measurements on aperiodic L1-CLI-RSSI measurement resources) in symbols scheduled / triggered by DCI.

[0107] (Option 3A-2) Among multiple DCIs, the UE prioritizes the one scheduled / triggered by the later detected DCI.

[0108] For example, suppose that the UE first detects a DCI for triggering aperiodic L1-SRS-RSRP measurement on a given symbol, and after detecting the first DCI, detects a DCI (second DCI) for scheduling / triggering a dynamic PDSCH / aperiodic CSI-RS for tracking / aperiodic CSI-RS for CQI (or aperiodic L1-CLI-RSSI measurement resource) on the same symbol (in the DL subband). In this case, the UE receives the PDSCH / aperiodic CSI-RS for tracking / aperiodic CSI-RS for CQI scheduled / triggered by the second DCI on the same symbol (in the DL subband) (or performs measurements on the aperiodic L1-CLI-RSSI measurement resource). In this case, the UE does not perform aperiodic L1-SRS-RSRP measurement on the same symbol.

[0109] Also, assume that the UE first detects a DCI (first DCI) for scheduling / triggering a dynamic PDSCH / aperiodic CSI-RS for tracking / aperiodic CSI-RS for CQI ( / aperiodic L1-CLI-RSSI measurement resource) on a predetermined symbol (in the DL subband thereof), and after detecting the first DCI, detects a DCI (second DCI) for triggering measurement of an aperiodic L1-SRS-RSRP resource on the same symbol. In this case, the UE performs aperiodic L1-SRS-RSRP measurement on the same symbol. In this case, the UE does not receive the dynamic PDSCH / aperiodic CSI-RS for tracking / aperiodic CSI-RS for CQI ( / aperiodic L1-CLI-RSSI measurement resource) scheduled / triggered by the first DCI on the predetermined symbol (in the DL subband thereof).

[0110] Case 3B: Collision between aperiodic L1-SRS-RSRP measurement resources and DL channels / signals configured by higher layers

[0111] (Option 3B-1) The UE gives priority to aperiodic L1-SRS-RSRP measurements.

[0112] A UE performs aperiodic L1-SRS-RSRP measurements on a given symbol if it detects DCI triggering measurement of an aperiodic L1-SRS-RSRP resource on that symbol and is configured / enabled to receive PDCCH / SPS PDSCH / periodic or quasi-static CSI-RS for tracking / periodic or quasi-static CSI-RS for CQI on that symbol (in the DL subband of that symbol) (or performs measurements on periodic or quasi-static L1-CLI-RSSI measurement resources). In this case, the UE does not receive PDCCH / SPS PDSCH / periodic or quasi-static CSI-RS for tracking / periodic or quasi-static CSI-RS for CQI on that symbol (in the DL subband of that symbol) (or performs measurements on periodic / quasi-static L1-CLI-RSSI measurement resources).

[0113] Case 3C: Collision between periodic / quasi-static L1-SRS-RSRP measurement resources and dynamic channels / signals

[0114] (Option 3C-1) The UE prioritizes dynamic channels / signals (reception).

[0115] When the UE detects DCI for scheduling / triggering a dynamic PDSCH / aperiodic CSI-RS for tracking / aperiodic CSI-RS for CQI ( / aperiodic L1-CLI-RSSI measurement resource) on a given symbol (in the DL subband) and is configured / enabled to measure on a periodic / semi-static L1-SRS-RSRP measurement resource on that symbol, the UE receives the dynamic PDSCH / aperiodic CSI-RS for tracking / aperiodic CSI-RS for CQI (or performs aperiodic L1-CLI-RSSI measurement) on that symbol. In this case, the UE does not perform L1-SRS-RSRP measurement on that symbol.

[0116] Case 3D: Collision between periodic / quasi-static L1-SRS-RSRP measurement resources and DL channels / signals (within DL sub-bands) configured by higher layers.

[0117] (Option 3D-1) The UE is not expected to be configured / enabled to measure periodic / quasi-static L1-SRS-RSRP resources on (in DL subbands of) symbols where it is configured / enabled to receive PDCCH / SPS PDSCH / periodic or quasi-static CSI-RS for tracking / periodic or quasi-static CSI-RS for CQI (or to perform measurements on periodic / quasi-static L1-CLI-RSSI measurement resources).

[0118] (Option 3D-2) The UE gives priority to the L1-SRS-RSRP measurements.

[0119] For example, if the UE is configured / enabled to measure a periodic / quasi-static L1-SRS-RSRP resource on a symbol (in a DL subband) on which it is configured / enabled to receive a PDCCH / SPS PDSCH / periodic or quasi-static CSI-RS for tracking / periodic or quasi-static CSI-RS for CQI (or to perform measurements on a periodic / quasi-static L1-CLI-RSSI measurement resource), the UE performs L1-SRS-RSRP measurements on that symbol, even though the UE does not receive a PDCCH / SPS PDSCH / periodic or quasi-static CSI-RS for tracking / periodic or quasi-static CSI-RS for CQI (or to perform measurements on a periodic / quasi-static L1-CLI-RSSI measurement resource) on that symbol (in a DL subband).

[0120] (Option 3D-3) The UE gives priority to the DL channel / signal.

[0121] For example, if the UE is configured / enabled to measure periodic / semi-persistent L1-SRS-RSRP resources on (in a DL subband of) a symbol that is configured / enabled to receive the PDCCH / SPS PDSCH / periodic or semi-persistent CSI-RS for tracking / periodic or semi-persistent CSI-RS for CQI, the UE receives the PDCCH / SPS PDSCH / periodic or semi-persistent CSI-RS for tracking / periodic or semi-persistent CSI-RS for CQI on (in a DL subband of) that symbol, and in this case, the UE does not perform L1-SRS-RSRP measurements on that symbol.

[0122] (Combined with options) Throughout the proposals, which proposals are applied or which options or alternatives are used may be determined by: - Set by parameters of upper layer Determined by related higher level parameters Indicated in MAC CE or DCI Determined based on UE capabilities - Listed in the specifications - Determined based on the conditions stated in the specifications Determined by higher layer parameters / MAC CE / DCI configuration and reported UE capabilities (combination of the above decisions)

[0123] Throughout the proposal, multiple options and alternatives may be combined into one option / alternative. Also, throughout the proposal, the measured reference signal (RS) will be the QCL source RS in the active / indicated TCI state.

[0124] (Signal from NW to UE) In this disclosure, the UE may receive the following types of information from the network (NW): Also, throughout the proposal, the network (NW) may be referred to as a gNB. Information via higher layer signaling (e.g., RRC messages / LPP (LTE propositioning protocol) messages) MAC CE Subheader with new LCID in the subheader Extending an existing MAC CE (e.g., introducing a new octet) DCI DCI Field: Existing DCI field or newly introduced DCI field RNTI: DCI with CRC scrambled by the existing RNTI or the newly introduced RNTI DCI Format: Existing DCI format or newly introduced DCI format Combination of the above information

[0125] In the present disclosure, the UE may receive information from the network (NW) in the following periodic format: Option 1: Receive periodic updates Option 2: Semi-persistent reception of information (triggered by UE or gNB instructions) Option 3: Aperiodic information reception (triggered by UE or gNB instructions)

[0126] In the present disclosure, the UE may receive information from the network (NW) as the following QCL rules: QCL Type A QCL Type B QCL Type C QCL Type D

[0127] In this disclosure, the QCL resource RS for each QCL type may be configured as follows: SSB (SS / PBCH Block) CSI-RS with / without repetition ·TRS(tracking reference signal) PDCCH / PDSCH DMRS

[0128] In this disclosure, information from the network (NW) is organized / displayed as follows: ·UE common / UE only Cell specific / Cell common Per UE / CC / BWP / band / cell / CG

[0129] (Signal from UE to NW) In this disclosure, the UE may report the following types of information to the network (NW): Also, throughout the proposal, the network (NW) may be referred to as a gNB. Information via higher layer signaling (e.g. RRC messages / LPP messages) MAC CE Subheader with new LCID in the subheader Extending an existing MAC CE (e.g., introducing a new octet) UCI UCI on PUCCH or PUSCH Combination of the above information

[0130] In the present disclosure, the UE may report information to the network (NW) in a periodic manner as follows: Option 1: Send information periodically Option 2: Semi-persistent information transmission (triggered by UE or gNB instruction) Option 3: Transmit information aperiodically (triggered by UE or gNB instructions)

[0131] <UE capability> The UE capability indicating the capability of the terminal may include the following information indicating the capability of the terminal. For example, the following new UE capability and report signaling (and RRC configuration) may be defined. Note that the information indicating the capability of the terminal may correspond to information defining the capability of the terminal. The UE may report the following information indicating the capabilities of the terminal to the gNB: ·Device capabilities for each proposal ·Ability to implement each option or combination of options in each proposal · Capabilities for each alternative or combination of alternatives in each proposal Whether the UE supports transmission of CG PUSCH occasions with one CG configuration in SBFD symbols and non-SBFD symbols Whether the UE supports reception of SPS PDSCH occasions with one SPS configuration in SBFD symbols and non-SBFD symbols The UE may report information indicating the above-mentioned terminal capabilities for each frequency to the gNB. · Capabilities for UE / FR1 / FR2 / FR2-1 / FR2-2 / FR3 / SCS / band / BC / FC / FSPC etc. The UE may report information indicating the above terminal capabilities for each cell to the gNB. Capabilities for each UE / cell / TDD / FDD, etc.

[0132] The above UE capabilities and the configuration of this proposal are closely related, and if the functions related to each option in each proposal depend on the UE capabilities, the gNB may select or enable the functions related to each option based on the capabilities reported by the UE.

[0133] Next, the configurations of base station 100 and terminal 200 will be described. Note that the configurations of base station 100 and terminal 200 described below are examples of functions related to the present embodiment. Base station 100 and terminal 200 may have functions not shown. Furthermore, the functional divisions and / or names of functional units are not limited as long as the functions perform operations related to the present embodiment.

[0134] <Base station configuration> 10 is a block diagram showing an example of the configuration of base station 100 according to this embodiment. Base station 100 includes, for example, a transmitting unit 101, a receiving unit 102, and a control unit 103. Base station 100 communicates with terminal 200 (see FIG. 11) by radio.

[0135] Transmitter 101 transmits a downlink (DL) signal to terminal 200. For example, transmitter 101 transmits a DL signal (for example, the above-mentioned RRC, SIB, MAC CE, DCI, notification, confirmation, etc.) under the control of controller 103.

[0136] The DL signal may include, for example, a downlink data signal and control information (e.g., Downlink Control Information (DCI)). The DL signal may also include information indicating scheduling related to signal transmission of terminal 200 (e.g., an UL grant). The DL signal may also include control information of higher layers (e.g., control information of Radio Resource Control (RRC)). The DL signal may also include a reference signal.

[0137] Channels used for transmitting DL signals include, for example, a downlink data channel and a downlink control channel. For example, the downlink data channel may include a PDSCH (Physical Downlink Shared Channel), and the downlink control channel may include a PDCCH (Physical Downlink Control Channel). For example, base station 100 transmits downlink control information to terminal 200 using the PDCCH and transmits downlink data signals using the PDSCH.

[0138] The reference signal included in the DL signal may include at least one of a demodulation reference signal (Demodulation Reference Signal (DMRS)), a Phase Tracking Reference Signal (PTRS), a Channel State Information-Reference Signal (CSI-RS), a Sounding Reference Signal (SRS), and a Positioning Reference Signal (PRS) for position information. For example, reference signals such as DMRS and PTRS are used for demodulating downlink data signals and are transmitted using the PDSCH.

[0139] The receiver 102 receives an uplink (UL) signal transmitted from the terminal 200. For example, under the control of the controller 103, the receiver 102 receives an UL signal (for example, the above-mentioned request, notification, etc.).

[0140] The transmitting unit 101 and the receiving unit 102 may be collectively referred to as a communication unit.

[0141] The control unit 103 controls the communication operations of the base station 100, including the transmission processing of the transmission unit 101 and the reception processing of the reception unit .

[0142] For example, the control unit 103 acquires information such as data and control information from the upper layer and outputs it to the transmitting unit 101. The control unit 103 also outputs the data, control information, etc. received from the receiving unit 102 to the upper layer.

[0143] For example, control unit 103 allocates resources (or channels) used for transmitting and receiving DL signals and / or resources used for transmitting and receiving UL signals based on signals (e.g., data and control information, etc.) received from terminal 200 and / or data and control information, etc. acquired from a higher layer. Information related to the allocated resources may be included in control information transmitted to terminal 200.

[0144] <Device configuration> 11 is a block diagram showing an example of the configuration of terminal 200 according to this embodiment. Terminal 200 includes, for example, receiving section 201, transmitting section 202, and control section 203. Terminal 200 communicates with base station 100, for example, wirelessly.

[0145] The transmitter 202 transmits an UL signal to the base station 100. For example, the transmitter 202 transmits the UL signal under the control of the controller 203. For example, the transmitter 202 may transmit an MsgA PRACH in a valid MsgA RO determined by the controller 203, and may transmit an MsgA PUSCH in a valid MsgA PO determined by the controller 203.

[0146] The UL signal may include, for example, an uplink data signal and control information (e.g., UCI). For example, information related to the processing capability of terminal 200 (e.g., UE capability) may be included. The UL signal may also include a reference signal.

[0147] Channels used for transmitting UL signals include, for example, an uplink data channel and an uplink control channel. For example, the uplink data channel includes a PUSCH (Physical Uplink Shared Channel), and the uplink control channel includes a PUCCH (Physical Uplink Control Channel). For example, terminal 200 transmits uplink control information to base station 100 using the PUCCH and transmits uplink data signals using the PUSCH.

[0148] The reference signals included in the UL signal may include, for example, at least one of DMRS, PTRS, CSI-RS, SRS, and PRS. For example, the reference signals such as DMRS and PTRS are used for demodulating the uplink data signal and are transmitted using an uplink channel (for example, PUSCH).

[0149] The receiving unit 201 and the transmitting unit 202 may be collectively referred to as a communication unit.

[0150] The control unit 203 controls the communication operations of the terminal 200 , including the reception processing in the reception unit 201 and the transmission processing in the transmission unit 202 .

[0151] For example, the control unit 203 acquires information such as data and control information from a higher layer and outputs it to the transmitting unit 202. Also, the control unit 203 outputs, for example, the data and control information received from the receiving unit 201 to the higher layer.

[0152] For example, the control unit 203 controls transmission of information to be fed back to the base station 100. The information to be fed back to the base station 100 may include, for example, HARQ-ACK, Channel State Information (CSI), or a Scheduling Request (SR). The information to be fed back to the base station 100 may be included in UCI.

[0153] Note that the channel used for transmitting the DL signal and the channel used for transmitting the UL signal are not limited to the above-mentioned examples. For example, the channel used for transmitting the DL signal and the channel used for transmitting the UL signal may include a Random Access Channel (RACH) and a Physical Broadcast Channel (PBCH). The RACH may be used to transmit Downlink Control Information (DCI) including a Random Access Radio Network Temporary Identifier (RA-RNTI), for example.

[0154] <Hardware configuration, etc.> The block diagrams used to explain the above embodiments show functional blocks. These functional blocks (components) are realized by any combination of at least one of hardware and software. Furthermore, the method for realizing each functional block is not particularly limited. That is, each functional block may be realized using a single device that is physically or logically coupled, or may be realized using two or more physically or logically separated devices that are directly or indirectly connected (for example, using wires, wirelessly, etc.) and these multiple devices. The functional block may also be realized by combining the single device or multiple devices with software.

[0155] Functions include, but are not limited to, judgment, determination, judgment, calculation, computation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, election, establishment, comparison, assumption, expectation, consideration, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocation, mapping, and assignment. For example, a functional block (component) that performs transmission is called a transmitting unit or transmitter. As mentioned above, there are no particular limitations on how these functions are implemented.

[0156] For example, a base station, a terminal, etc. according to an embodiment of the present disclosure may function as a computer that performs processing of the communication method of the present disclosure. Fig. 12 is a diagram illustrating an example of the hardware configuration of a base station and a terminal according to an embodiment of the present disclosure. The above-described base station 100 and terminal 200 may be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc.

[0157] In the following description, the term "apparatus" can be interpreted as a circuit, a device, a unit, etc. The hardware configuration of base station 100 and terminal 200 may be configured to include one or more of the apparatuses shown in the drawings, or may be configured to exclude some of the apparatuses.

[0158] Each function in the base station 100 and the terminal 200 is realized by loading predetermined software (programs) onto hardware such as the processor 1001 and the memory 1002, causing the processor 1001 to perform calculations, control communication by the communication device 1004, and control at least one of reading and writing data in the memory 1002 and the storage 1003.

[0159] The processor 1001 controls the entire computer by running, for example, an operating system. The processor 1001 may be configured by a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic unit, a register, etc. For example, the above-mentioned control unit 103 and control unit 203 may be realized by the processor 1001.

[0160] Furthermore, the processor 1001 reads programs (program codes), software modules, data, etc. from at least one of the storage 1003 and the communication device 1004 into the memory 1002, and executes various processes in accordance with these. The programs used are those that cause a computer to execute at least some of the operations described in the above-described embodiments. For example, the control unit 203 of the terminal 200 may be implemented by a control program stored in the memory 1002 and running on the processor 1001, and similar implementations may be made for other functional blocks. While the above-described various processes have been described as being executed by one processor 1001, they may also be executed simultaneously or sequentially by two or more processors 1001. The processor 1001 may be implemented by one or more chips. The programs may also be transmitted from a network via a telecommunications line.

[0161] The memory 1002 is a computer-readable recording medium and may be configured by, for example, at least one of a read-only memory (ROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a random access memory (RAM), etc. The memory 1002 may also be called a register, a cache, a main memory (primary storage device), etc. The memory 1002 can store executable programs (program codes), software modules, etc. for implementing a communication method according to an embodiment of the present disclosure.

[0162] Storage 1003 is a computer-readable recording medium, and may be composed of at least one of, for example, an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (e.g., a compact disk, a digital versatile disk, a Blu-ray disc), a smart card, a flash memory (e.g., a card, a stick, a key drive), a floppy disk, a magnetic strip, etc. Storage 1003 may also be referred to as an auxiliary storage device. The above-mentioned storage medium may be, for example, a database, a server, or other appropriate medium including at least one of memory 1002 and storage 1003.

[0163] The communication device 1004 is hardware (transmission / reception device) for communicating between computers via at least one of a wired network and a wireless network, and is also referred to as, for example, a network device, a network controller, a network card, or a communication module. The communication device 1004 may be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc. to realize at least one of frequency division duplex (FDD) and time division duplex (TDD). For example, the above-mentioned transmitter 101, receiver 102, receiver 201, transmitter 202, etc. may be realized by the communication device 1004.

[0164] The input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that receives input from the outside. The output device 1006 is an output device (for example, a display, a speaker, an LED lamp, etc.) that outputs to the outside. The input device 1005 and the output device 1006 may be integrated into one device (for example, a touch panel).

[0165] Furthermore, each device, such as the processor 1001 and the memory 1002, is connected by a bus 1007 for communicating information. The bus 1007 may be configured using a single bus, or may be configured using different buses between each device.

[0166] Furthermore, base station 100 and terminal 200 may be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), or a field programmable gate array (FPGA), and some or all of the functional blocks may be realized by the hardware. For example, processor 1001 may be implemented using at least one of these pieces of hardware.

[0167] (Supplementary explanation of the embodiment) Although the embodiments of the present disclosure have been described above, the disclosed invention is not limited to such embodiments, and those skilled in the art will understand various modifications, alterations, alternatives, and substitutions. While specific numerical examples have been used to facilitate understanding of the invention, unless otherwise specified, these numerical values ​​are merely examples, and any appropriate values ​​may be used. The division of items in the above description is not essential to the present disclosure; features described in two or more items may be used in combination as needed, and features described in one item may apply to features described in another item (unless inconsistent). The boundaries between functional units or processing units in the functional block diagrams do not necessarily correspond to the boundaries between physical components. The operations of multiple functional units may be performed by a single physical component, or the operations of a single functional unit may be performed by multiple physical components. The order of processing steps described in the embodiments may be reversed as long as there is no contradiction. For convenience of processing description, base stations and terminals have been described using functional block diagrams. However, such devices may be implemented using hardware, software, or a combination thereof. The software operated by the processor of a base station in accordance with an embodiment of the present disclosure, and the software operated by the processor of a terminal in accordance with an embodiment of the present disclosure may each be stored in random access memory (RAM), flash memory, read-only memory (ROM), EPROM, EEPROM, registers, hard disk (HDD), removable disk, CD-ROM, database, server, or any other suitable storage medium.

[0168] <Information notification, signaling> The notification of information is not limited to the embodiments described in the present disclosure, and may be performed using other methods. For example, the notification of information may be performed by physical layer signaling (e.g., Downlink Control Information (DCI), Uplink Control Information (UCI)), higher layer signaling (e.g., Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB))), other signals, or a combination thereof. Furthermore, the RRC signaling may be referred to as an RRC message, and may be, for example, an RRC Connection Setup message, an RRC Connection Reconfiguration message, or the like.

[0169] <Applicable systems> Embodiments described in the present disclosure may be applied to at least one of a system using LTE (Long Term Evolution), LTE-Advanced (LTE-A), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), 5G (5th generation mobile communication system), 6G (6th generation mobile communication system), xG (xG (x is, for example, an integer or a decimal point)), FRA (Future Radio Access), NR (new Radio), New radio access (NX), Future generation radio access (FX), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, UWB (Ultra-Wideband), Bluetooth (registered trademark), or other suitable systems, and next generation systems extended, modified, created, or defined based on these. Furthermore, a combination of multiple systems (for example, a combination of at least one of LTE and LTE-A with 5G) may be applied.

[0170] <Processing procedures, etc.> The order of the procedures, sequences, flowcharts, etc. of each aspect / embodiment described in this disclosure may be changed unless it is consistent. For example, the methods described in this disclosure present elements of various steps using an example order, and are not limited to the particular order presented.

[0171] <Base station operation> In the present disclosure, a specific operation described as being performed by a base station may be performed by its upper node in some cases. In a network consisting of one or more network nodes having a base station, it is clear that various operations performed for communication with a terminal may be performed by at least one of the base station and another network node other than the base station (for example, but not limited to, an MME or an S-GW). Although the above example illustrates a case where there is one other network node other than the base station, a combination of multiple other network nodes (for example, an MME and an S-GW) may also be used.

[0172] <Input / output direction> Information, etc. (see the section on information and signals) can be output from a higher layer (or a lower layer) to a lower layer (or a higher layer). It may also be input / output via multiple network nodes.

[0173] <Handling of input and output information> Input and output information may be stored in a specific location (for example, memory) or may be managed using a management table. Input and output information may be overwritten, updated, or added to. Output information may be deleted. Input information may be sent to another device.

[0174] <Judgment method> The determination may be made based on a value represented by one bit (0 or 1), a Boolean value (true or false), or a numerical comparison (e.g., comparison with a predetermined value).

[0175] <Variations of form, etc.> Each aspect / embodiment described in this disclosure may be used alone, in combination, or switched depending on the implementation. Furthermore, notification of predetermined information (e.g., notification that "X is true") is not limited to being done explicitly, but may be done implicitly (e.g., by not notifying the predetermined information).

[0176] Although the present disclosure has been described in detail above, it is clear to those skilled in the art that the present disclosure is not limited to the embodiments described herein. The present disclosure can be implemented in modified and altered forms without departing from the spirit and scope of the present disclosure as defined by the claims. Therefore, the description of the present disclosure is intended to be illustrative and does not have any limiting meaning on the present disclosure.

[0177] <Software> Software shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.

[0178] Software, instructions, information, etc. may also be transmitted or received over a transmission medium. For example, if software is transmitted from a website, server, or other remote source using wired technologies (such as coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL)), and / or wireless technologies (such as infrared, microwave), then these wired and / or wireless technologies are included within the definition of transmission media.

[0179] <Information, Signals> The information, signals, etc. described in this disclosure may be represented using any of a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any combination thereof.

[0180] Note that terms explained in this disclosure and terms necessary for understanding this disclosure may be replaced with terms having the same or similar meanings. For example, at least one of a channel and a symbol may be a signal (signaling). Furthermore, a signal may be a message. Furthermore, a component carrier (CC) may be called a carrier frequency, a cell, a frequency carrier, etc.

[0181] <System, Network> As used in this disclosure, the terms "system" and "network" are used interchangeably.

[0182] <Parameter, channel name> Furthermore, the information, parameters, etc. described in the present disclosure may be expressed using absolute values, may be expressed using relative values ​​from a predetermined value, or may be expressed using other corresponding information. For example, a radio resource may be indicated by an index.

[0183] The names used for the above-described parameters are not intended to be limiting in any way. Furthermore, the mathematical expressions using these parameters may differ from those explicitly disclosed in this disclosure. The various channels (e.g., PUCCH, PDCCH, etc.) and information elements may be identified by any suitable names, and therefore the various names assigned to these various channels and information elements are not intended to be limiting in any way.

[0184] <Base station> In this disclosure, terms such as "base station (BS)," "radio base station," "fixed station," "NodeB," "eNodeB (eNB)," "gNodeB (gNB)," "access point," "transmission point," "reception point," "transmission / reception point," "cell," "sector," "cell group," "carrier," and "component carrier" may be used interchangeably. Base stations may also be referred to by terms such as macrocell, small cell, femtocell, and picocell.

[0185] A base station can accommodate one or more (e.g., three) cells. When a base station accommodates multiple cells, the overall coverage area of ​​the base station can be divided into multiple smaller areas, and each smaller area can be provided with communication service by a base station subsystem (e.g., a small indoor base station (RRH: Remote Radio Head)). The term "cell" or "sector" refers to a part or the entire coverage area of ​​a base station and / or base station subsystem that provides communication service within this coverage.

[0186] In the present disclosure, the base station transmitting information to a terminal may be interpreted as the base station instructing the terminal to control or operate based on the information.

[0187] <Mobile station> In this disclosure, the terms "Mobile Station (MS)," "user terminal," "User Equipment (UE)," "terminal," etc. may be used interchangeably.

[0188] A mobile station may also be referred to by those skilled in the art as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable terminology.

[0189] <Base station / mobile station> At least one of the base station and the mobile station may be referred to as a transmitting device, a receiving device, a communication device, etc. At least one of the base station and the mobile station may be a device mounted on a mobile object, the mobile object itself, etc. The mobile object refers to a movable object, and may move at any speed. Naturally, this also includes cases where the mobile object is stationary. Examples of the mobile object include, but are not limited to, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, handcars, rickshaws, ships and other watercraft, airplanes, rockets, satellites, drones (registered trademark), multicopters, quadcopters, balloons, and objects mounted thereon. The mobile object may also be a mobile object that moves autonomously based on an operational command. It may be a vehicle (e.g., a car, an airplane, etc.), an unmanned mobile object (e.g., a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned). At least one of the base station and the mobile station may be a device that does not necessarily move during communication operations. For example, at least one of the base station and the mobile station may be an IoT (Internet of Things) device such as a sensor.

[0190] Furthermore, a base station in the present disclosure may be read as a terminal. For example, the embodiments of the present disclosure may be applied to a configuration in which communication between a base station and a terminal is replaced with communication between multiple terminals (which may be called, for example, D2D (Device-to-Device) or V2X (Vehicle-to-Everything)). In this case, the terminal may be configured to have the functions of the base station described above. Furthermore, terms such as "uplink" and "downlink" may be read as terms corresponding to communication between terminals (for example, "side"). For example, terms such as an uplink channel and a downlink channel may be read as a side channel.

[0191] Similarly, the term "terminal" in the present disclosure may be read as "base station." In this case, the base station may be configured to have the functions of the terminal described above.

[0192] Fig. 13 shows an example configuration of a vehicle 2001. As shown in Fig. 13, the vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a shift lever 2006, front wheels 2007, rear wheels 2008, an axle 2009, an electronic control unit 2010, various sensors 2021 to 2029, an information service unit 2012, and a communication module 2013. Each aspect / embodiment described in the present disclosure may be applied to a communication device mounted on the vehicle 2001, and may be applied to the communication module 2013, for example.

[0193] The drive unit 2002 is configured, for example, by an engine, a motor, or a hybrid of an engine and a motor. The steering unit 2003 includes at least a steering wheel (also called a handle), and is configured to steer at least one of the front wheels and the rear wheels based on the operation of the steering wheel operated by the user.

[0194] The electronic control unit 2010 is composed of a microprocessor 2031, a memory (ROM, RAM) 2032, and a communication port (IO port) 2033. Signals are input to the electronic control unit 2010 from various sensors 2021 to 2029 provided in the vehicle 2001. The electronic control unit 2010 may also be called an ECU (Electronic Control Unit).

[0195] The signals from the various sensors 2021 to 2029 include a current signal from a current sensor 2021 that senses the current of the motor, a rotation speed signal of the front and rear wheels obtained by a rotation speed sensor 2022, an air pressure signal of the front and rear wheels obtained by an air pressure sensor 2023, a vehicle speed signal obtained by a vehicle speed sensor 2024, an acceleration signal obtained by an acceleration sensor 2025, an accelerator pedal depression amount signal obtained by an accelerator pedal sensor 2029, a brake pedal depression amount signal obtained by a brake pedal sensor 2026, a shift lever operation signal obtained by a shift lever sensor 2027, and a detection signal for detecting obstacles, vehicles, pedestrians, etc. obtained by an object detection sensor 2028.

[0196] The information service unit 2012 is composed of various devices, such as a car navigation system, an audio system, speakers, a television, and a radio, for providing (outputting) various information such as driving information, traffic information, and entertainment information, and one or more ECUs for controlling these devices. The information service unit 2012 uses information acquired from external devices via the communication module 2013, etc., to provide various multimedia information and multimedia services to the occupants of the vehicle 2001.

[0197] The information service unit 2012 may include input devices (e.g., keyboards, mice, microphones, switches, buttons, sensors, touch panels, etc.) that accept input from the outside, and may also include output devices (e.g., displays, speakers, LED lamps, touch panels, etc.) that output to the outside.

[0198] The driving assistance system unit 2030 is composed of various devices that provide functions for preventing accidents and reducing the driver's driving burden, such as a millimeter-wave radar, a LiDAR (Light Detection and Ranging), a camera, a positioning locator (e.g., GNSS, etc.), map information (e.g., high-definition (HD) map, autonomous vehicle (AV) map, etc.), a gyro system (e.g., an IMU (Inertial Measurement Unit), an INS (Inertial Navigation System), etc.), an AI (Artificial Intelligence) chip, and an AI processor, as well as one or more ECUs that control these devices. The driving assistance system unit 2030 also transmits and receives various information via the communication module 2013 to realize the driving assistance function or the autonomous driving function.

[0199] The communication module 2013 can communicate with the microprocessor 2031 and components of the vehicle 2001 via the communication port. For example, the communication module 2013 transmits and receives data via the communication port 2033 to and from the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, shift lever 2006, front wheels 2007, rear wheels 2008, axle 2009, microprocessor 2031 and memory (ROM, RAM) 2032 in the electronic control unit 2010, and sensors 2021 to 2029, which are provided in the vehicle 2001.

[0200] The communication module 2013 is a communication device that can be controlled by the microprocessor 2031 of the electronic control unit 2010 and can communicate with an external device. For example, it transmits and receives various information to and from the external device via wireless communication. The communication module 2013 may be located either inside or outside the electronic control unit 2010. The external device may be, for example, a base station, a mobile station, or the like.

[0201] The communication module 2013 may transmit at least one of signals from the above-mentioned various sensors 2021-2029 input to the electronic control unit 2010, information obtained based on the signals, and information based on input from the outside (user) obtained via the information service unit 2012 to an external device via wireless communication. The electronic control unit 2010, the various sensors 2021-2029, the information service unit 2012, etc. may be referred to as input units that accept input. For example, the PUSCH transmitted by the communication module 2013 may include information based on the above-mentioned input.

[0202] The communication module 2013 receives various information (traffic information, traffic signal information, vehicle distance information, etc.) transmitted from external devices and displays it on an information service unit 2012 provided in the vehicle 2001. The information service unit 2012 may be called an output unit that outputs information (for example, outputs information to a device such as a display or speaker based on the PDSCH (or data / information decoded from the PDSCH) received by the communication module 2013). The communication module 2013 also stores the various information received from external devices in a memory 2032 that can be used by the microprocessor 2031. Based on the information stored in the memory 2032, the microprocessor 2031 may control the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, shift lever 2006, front wheels 2007, rear wheels 2008, axles 2009, sensors 2021 to 2029, and the like provided in the vehicle 2001.

[0203] <Terminology and interpretation> As used in this disclosure, the terms "determining" and "determining" may encompass a wide variety of actions. "Determining" and "determining" may include, for example, judging, calculating, computing, processing, deriving, investigating, looking up, searching, inquiring (e.g., searching in a table, database, or other data structure), ascertaining, and the like. "Determining" and "determining" may also include receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, accessing (e.g., accessing data in memory), and the like. Furthermore, "judgment" and "decision" can include regarding resolving, selecting, choosing, establishing, comparing, etc. as having been "judged" or "decided." In other words, "judgment" and "decision" can include regarding some action as having been "judged" or "decided." Furthermore, "judgment (decision)" can be interpreted as "assuming," "expecting," "considering," etc.

[0204] The terms "connected," "coupled," or any variation thereof, refer to any direct or indirect connection or coupling between two or more elements, and may include the presence of one or more intermediate elements between two elements that are "connected" or "coupled" to each other. The coupling or connection between elements may be physical, logical, or a combination thereof. For example, "connected" may be read as "access." As used in this disclosure, two elements may be considered to be "connected" or "coupled" to each other using one or more wires, cables, and / or printed electrical connections, as well as electromagnetic energy having wavelengths in the radio frequency range, microwave range, and optical (both visible and invisible) range, as some non-limiting and non-exhaustive examples.

[0205] <Reference signal> The reference signal may be abbreviated as RS (Reference Signal) or may be called a pilot depending on the applicable standard.

[0206] <The meaning of "based on"> As used in this disclosure, the phrase "based on" does not mean "based only on," unless expressly stated otherwise. In other words, the phrase "based on" means both "based only on" and "based at least on."

[0207] <"First", "Second"> As used in this disclosure, any reference to an element using a designation such as "first," "second," etc. does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Thus, a reference to a first and a second element does not imply that only two elements may be employed or that the first element must in some way precede the second element.

[0208] <Means> In the configurations of each of the above-described devices, the "means" may be replaced with a "section", "circuit", "device", or the like.

[0209] <Open format> In the present disclosure, when the terms "include", "including", and their variants are used, these terms are intended to be inclusive, similar to the term "comprising". Further, the term "or" used in the present disclosure is not intended to be an exclusive disjunction.

[0210] <Time units such as TTI, frequency units such as RB, radio frame configuration> A radio frame may be composed of one or more frames in the time domain. Each of the one or more frames in the time domain may be referred to as a subframe. A subframe may further be composed of one or more slots in the time domain. A subframe may have a fixed time length (e.g., 1 ms) that does not depend on numerology.

[0211] Numerology may be a communication parameter applied to at least one of transmission and reception of a certain signal or channel. Numerology may indicate, for example, at least one of subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame configuration, specific filtering processing performed by a transceiver in the frequency domain, specific windowing processing performed by a transceiver in the time domain, and the like.

[0212] A slot may be composed of one or more symbols (such as an Orthogonal Frequency Division Multiplexing (OFDM) symbol or a Single Carrier Frequency Division Multiple Access (SC-FDMA) symbol) in the time domain. A slot may be a time unit based on numerology.

[0213] A slot may include multiple minislots. Each minislot may consist of one or multiple symbols in the time domain. A minislot may also be called a subslot. A minislot may consist of fewer symbols than a slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a minislot may be called PDSCH (or PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a minislot may be called PDSCH (or PUSCH) mapping type B.

[0214] The radio frame, subframe, slot, minislot, and symbol all represent time units for transmitting signals, and may be referred to by other names corresponding to the radio frame, subframe, slot, minislot, and symbol.

[0215] For example, one subframe may be called a transmission time interval (TTI), multiple consecutive subframes may be called a TTI, or one slot or one minislot may be called a TTI. That is, at least one of the subframe and the TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (for example, 1-13 symbols), or a period longer than 1 ms. Note that the unit representing the TTI may be called a slot, minislot, etc. instead of a subframe.

[0216] Here, TTI refers to, for example, the smallest time unit for scheduling in wireless communication. For example, in an LTE system, a base station performs scheduling to allocate radio resources (such as frequency bandwidth and transmission power that can be used by each user terminal) to each user terminal in TTI units. However, the definition of TTI is not limited to this.

[0217] The TTI may be a transmission time unit for a channel-encoded data packet (transport block), a code block, a code word, etc., or may be a processing unit for scheduling, link adaptation, etc. When a TTI is given, the time interval (e.g., the number of symbols) to which a transport block, a code block, a code word, etc. is actually mapped may be shorter than the TTI.

[0218] When one slot or one minislot is called a TTI, one or more TTIs (i.e., one or more slots or one or more minislots) may be the minimum time unit for scheduling. Also, the number of slots (minislots) constituting the minimum time unit for scheduling may be controlled.

[0219] A TTI having a time length of 1 ms may be called a regular TTI (TTI in LTE Rel. 8-12), normal TTI, long TTI, regular subframe, normal subframe, long subframe, slot, etc. A TTI shorter than a regular TTI may be called a shortened TTI, short TTI, partial or fractional TTI, shortened subframe, short subframe, minislot, subslot, slot, etc.

[0220] In addition, a long TTI (e.g., a normal TTI, a subframe, etc.) may be interpreted as a TTI having a time length of more than 1 ms, and a short TTI (e.g., a shortened TTI, etc.) may be interpreted as a TTI having a TTI length shorter than the TTI length of a long TTI and equal to or greater than 1 ms.

[0221] A resource block (RB) is a resource allocation unit in the time domain and frequency domain, and may include one or more consecutive subcarriers in the frequency domain. The number of subcarriers included in an RB may be the same regardless of numerology, for example, 12. The number of subcarriers included in an RB may also be determined based on numerology.

[0222] The time domain of an RB may include one or more symbols and may have a length of one slot, one minislot, one subframe, or one TTI. One TTI, one subframe, etc. may each be composed of one or more resource blocks.

[0223] Note that one or more RBs may also be called a physical resource block (PRB), a sub-carrier group (SCG), a resource element group (REG), a PRB pair, an RB pair, or the like.

[0224] Furthermore, a resource block may be composed of one or more resource elements (REs). For example, one RE may be a radio resource region of one subcarrier and one symbol.

[0225] A Bandwidth Part (BWP) (which may also be referred to as a fractional bandwidth) may represent a subset of contiguous common resource blocks (RBs) for a given numerology on a given carrier, where the common RBs may be identified by their index relative to a common reference point of the carrier. PRBs may be defined in a given BWP and numbered within that BWP.

[0226] The BWP may include a BWP for UL (UL BWP) and a BWP for DL ​​(DL BWP). One or more BWPs may be configured for a UE within one carrier.

[0227] At least one of the configured BWPs may be active, and the UE may not expect to transmit or receive a given signal / channel outside the active BWP. Note that the terms "cell," "carrier," etc. in this disclosure may be read as "BWP."

[0228] The above-described structures of radio frames, subframes, slots, minislots, symbols, etc. are merely examples. For example, the number of subframes included in a radio frame, the number of slots per subframe or radio frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, the number of subcarriers included in an RB, the number of symbols in a TTI, the symbol length, the cyclic prefix (CP) length, etc. may be changed in various ways.

[0229] <Maximum transmission power> The "maximum transmit power" in this disclosure may mean the maximum value of transmit power, the nominal UE maximum transmit power, or the rated UE maximum transmit power.

[0230] <Article> In this disclosure, where articles are added by translation, such as a, an, and the in English, the disclosure may include that the nouns following these articles are in the plural form.

[0231] <"Different"> In the present disclosure, the term "A and B are different" may mean "A and B are different from each other." The term may also mean "A and B are each different from C." Terms such as "separate" and "coupled" may also be interpreted in the same way as "different." [Industrial Applicability]

[0232] One aspect of the present disclosure is useful in wireless communication systems. [Explanation of symbols]

[0233] 10. Wireless communication systems 20 NG-RAN 100 base stations (gNB) 200 User Equipment (UE) 101,202 Transmitter 102,201 Receiver 103,203 Control unit

Claims

1. A terminal that does not support UE capability for receiving frequency division multiplexed downlink signals and measuring crosslink interference in the physical layer, a receiving unit for receiving the downlink signal; a control unit for configuring resources for performing measurements for the crosslink interference and reporting measurement results; Equipped with When a conflict occurs between the resource for receiving the downlink signal and the resource for measuring the crosslink interference, performing one of receiving the downlink signal and measuring the crosslink interference according to a preset rule. Terminal.

2. When a resource for receiving the downlink signal conflicts with a resource for measuring the crosslink interference, always giving priority to the reception of the downlink signal. The terminal according to claim 1 .

3. When a resource for receiving a dynamic downlink signal conflicts with a resource for measurement of non-periodic crosslink interference, a process triggered by a downlink control signal that is detected later among a downlink control signal that triggers reception of the downlink signal and a downlink control signal that triggers measurement of the crosslink interference is performed. The terminal according to claim 1 .

4. When a resource for receiving a downlink signal configured by a higher layer conflicts with a resource for measurement of aperiodic crosslink interference, the measurement of aperiodic crosslink interference is prioritized. The terminal according to claim 1 .

5. A terminal that does not support UE capability for reception of frequency division multiplexed downlink signals and measurements for crosslink interference at the physical layer, receiving the downlink signal; configuring resources for performing measurements for the cross-link interference and reporting measurement results; When a conflict occurs between the resource for receiving the downlink signal and the resource for measuring the crosslink interference, performing one of receiving the downlink signal and measuring the crosslink interference according to a preset rule. Communication method.

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